When your day has gone completely out of control, and the only logical thing to do is get incoherent drunk. This is the combination of getting shitfaced and lambasted, which would leave you probably in a coma if capable of such a feat.
"I had a totally terrible day. I walked in on my gf cheating, got fired, thrown out of my house, and diagnosed with crabs....let's get SHLAMBASTED"
by Nick Gionfriddo December 22, 2008
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